JPH0245822Y2 - - Google Patents
Info
- Publication number
- JPH0245822Y2 JPH0245822Y2 JP7456383U JP7456383U JPH0245822Y2 JP H0245822 Y2 JPH0245822 Y2 JP H0245822Y2 JP 7456383 U JP7456383 U JP 7456383U JP 7456383 U JP7456383 U JP 7456383U JP H0245822 Y2 JPH0245822 Y2 JP H0245822Y2
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- insulator
- side terminal
- detection
- voltage detection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000001514 detection method Methods 0.000 claims description 33
- 239000012212 insulator Substances 0.000 claims description 28
- 239000003990 capacitor Substances 0.000 claims description 11
- 230000001681 protective effect Effects 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 7
- 229910052754 neon Inorganic materials 0.000 description 7
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
Description
【考案の詳細な説明】
従来、高圧または特別高圧の電路における電路
電圧や零相電圧を検出する場合、第１図や第２図
に示されている電圧検出用碍子１が使用されてい
る。[Detailed Description of the Invention] Conventionally, when detecting line voltage or zero-sequence voltage in a high voltage or extra high voltage line, a voltage detection insulator 1 shown in FIGS. 1 and 2 has been used.
この電圧検出用碍子１は、高圧または特別高圧
用碍子２に電圧検出用蓄電器３を内蔵し、同碍子
２に蓄電器３とそれぞれ接続した高圧側端子４
と、低圧側端子５を設けた構造を有し、電路電圧
を検出する場合は、第１図示のように低圧側端子
５に検出用抵抗器６を接続するとともに、抵抗器
６に検電用ネオン灯７を並列に接続して検出を行
い、零相電圧を検出する場合は、第２図示のよう
に三相電路の各相を高圧側端子４にそれぞれ接続
した３個の碍子２の各低圧側端子５に零相電圧検
出用変成器８を接続して検出をおこなうが、これ
らの機器配線が正常に接続されている場合には、
蓄電器３は微少容量のため、商用周波において、
高いインピーダンスとなつており、一方検出用抵
抗器６、検電用ネオン灯７又は変成器８はこれに
比べ十分小さなインピーダンスに設定されている
ので、蓄電器３と検出用抵抗器６、検電用ネオン
灯７、又は蓄電器３と変成器８による電圧分割の
結果、低圧側端子５と検出用抵抗器６、検電用ネ
オン灯７を結ぶ配線、又は低圧側端子５と変成器
８を結ぶ配線は、通常700V以下の低圧電位とな
つている。万一、この低圧側端子５と検出用抵抗
器６、検電用ネオン灯７を結ぶ配線、又は低圧側
端子５と変成器８を結ぶ配線が過失又は事故によ
りはずれたり、切断された場合には、負荷が開放
となり、高圧側端子４に加わつた一次側電路の高
電圧が、電圧分割されることなく、低圧側端子５
にそのまま現われ、これに接続している配線にも
高電圧が発生し、極めて危険な状態になるという
欠点がある。 This voltage detection insulator 1 has a voltage detection capacitor 3 built into a high voltage or special high voltage insulator 2, and high voltage side terminals 4 each connected to a capacitor 3 to the same insulator 2.
When detecting the circuit voltage, a detection resistor 6 is connected to the low voltage side terminal 5 as shown in the first diagram, and a voltage detection resistor 6 is connected to the resistor 6. When detecting zero-phase voltage by connecting neon lamps 7 in parallel, each of the three insulators 2 is connected to each phase of the three-phase electric circuit to the high-voltage side terminal 4, as shown in the second diagram. Detection is performed by connecting the zero-phase voltage detection transformer 8 to the low voltage side terminal 5, but if these equipment wirings are connected normally,
Since the capacitor 3 has a small capacity, at commercial frequency,
The impedance of the detection resistor 6, the neon lamp 7 for voltage detection, or the transformer 8 is set to a sufficiently small impedance compared to this. As a result of voltage division by the neon lamp 7 or the capacitor 3 and the transformer 8, the wiring connecting the low voltage side terminal 5 and the detection resistor 6 and the neon lamp 7 for voltage detection, or the wiring connecting the low voltage side terminal 5 and the transformer 8 is usually a low voltage potential of 700V or less. In the unlikely event that the wiring connecting the low voltage side terminal 5 and the detection resistor 6 and the neon lamp 7 for voltage detection, or the wiring connecting the low voltage side terminal 5 and the transformer 8, becomes disconnected or cut due to negligence or accident. In this case, the load is opened and the high voltage of the primary circuit applied to the high voltage side terminal 4 is transferred to the low voltage side terminal 5 without voltage division.
This has the drawback that high voltage is generated in the wiring connected to it, creating an extremely dangerous situation.
本考案は、上記従来の欠点を解消しうる電圧検
出用碍子を提供しようとするものである。 The present invention aims to provide a voltage detection insulator that can eliminate the above-mentioned conventional drawbacks.
以下図面第３図及び第４図にもとずいて本考案
の実施例を説明すると、９は高圧または特別高圧
用の碍子、１０は碍子９に内蔵した電圧検出用蓄
電器、１１は碍子９の一方の端面に設けた高圧側
端子で、蓄電器１０に接続している。１２は碍子
９の他方の端面に設けた低圧側端子で、蓄電気１
０に接続している。１３は碍子９において低圧側
端子１２が設けられている端面に設けた保護接地
用端子、１４は碍子９に内蔵し、かつ保護接地用
端子１３と、低圧側端子１２の間に接続した電圧
制限素子で、バリスタ、双方向ツエナーダイオー
ド等を使用する。 An embodiment of the present invention will be described below based on FIGS. 3 and 4 of the drawings. Reference numeral 9 is an insulator for high voltage or extra high voltage, 10 is a voltage detection capacitor built into the insulator 9, and 11 is the insulator 9. It is connected to the capacitor 10 through a high voltage side terminal provided on one end face. 12 is a low voltage side terminal provided on the other end face of the insulator 9;
Connected to 0. 13 is a protective earthing terminal provided on the end face of the insulator 9 where the low voltage side terminal 12 is provided, and 14 is a voltage limiter built in the insulator 9 and connected between the protective earthing terminal 13 and the low voltage side terminal 12. Elements such as varistors and bidirectional Zener diodes are used.
上記の構成より成る電圧検出用碍子を用いて電
路電圧を検出する場合は、第３図示のように低圧
側端子１２に検出用抵抗器１５を接続するととも
に、抵抗器１５に検電用ネオン灯１６を並列に接
続し、保護接地用端子１３にアース線１７の一端
を接続し、アース線１７の他端を碍子９の近傍で
大地、例えば電路を支える鉄塔の一部等に接続す
る。また、上記の構成より成る電圧検出碍子を用
いて零相電圧を検出する場合は、第４図示のよう
に３個の碍子９の各低圧側端子１２に零相電圧検
出用変成器１８を接続し、各保護接地用端子１３
に各アース線１９の一端を接続し、各アース線１
９の他端を碍子９の近傍で大地、例えば電路を支
える鉄塔の一部等に接続する。 When detecting the circuit voltage using the voltage detection insulator having the above configuration, a detection resistor 15 is connected to the low voltage side terminal 12 as shown in the third diagram, and a neon lamp for voltage detection is connected to the resistor 15. 16 are connected in parallel, one end of a ground wire 17 is connected to the protective grounding terminal 13, and the other end of the ground wire 17 is connected to the ground near the insulator 9, for example, a part of a steel tower supporting an electric line. In addition, when detecting zero-sequence voltage using the voltage detection insulator having the above configuration, a zero-sequence voltage detection transformer 18 is connected to each low-voltage side terminal 12 of the three insulators 9 as shown in the fourth figure. and each protective grounding terminal 13
Connect one end of each ground wire 19 to
The other end of the insulator 9 is connected to the ground near the insulator 9, for example, to a part of a steel tower supporting an electric line.
本考案は、叙上のように電圧検出用蓄電器を内
蔵した碍子に、上記蓄電器とそれぞれ接続した高
圧側端子と低圧側端子とを設けて成る電圧検出用
碍子において、保護接地用端子を設け、この保護
接地用端子と、低圧側端子との間に電圧制限素子
を接続したから、本考案に係る電圧検出用碍子を
電路電圧や零相電圧の検出に用いれば、これらの
機器配線が過失または事故によりはずれた場合、
例えば検電用ネオン灯や検出用抵抗器や零相電圧
検出用変成器等がはずれても、電圧制限素子の働
きにより、低圧側端子には電路の高圧または特別
高圧があらわれなくなり、安全な碍子を提供する
ことができる。 As described above, the present invention provides a voltage detection insulator comprising a voltage detection capacitor built-in and a high voltage side terminal and a low voltage side terminal respectively connected to the voltage detection capacitor, in which a protective grounding terminal is provided. Since a voltage limiting element is connected between this protective grounding terminal and the low voltage side terminal, if the voltage detection insulator according to the present invention is used to detect circuit voltage or zero-sequence voltage, it will be possible to prevent faulty or faulty wiring of these devices. If it comes off due to an accident,
For example, even if a neon lamp for voltage detection, a detection resistor, a transformer for zero-phase voltage detection, etc. are disconnected, due to the function of the voltage limiting element, the high voltage or special high voltage of the electric circuit will not appear on the low voltage side terminal, and the insulator will be safe. can be provided.
第１図は従来の電圧検出用碍子を用いて電路電
圧を検出する場合の配線図、第２図は従来の電圧
検出用碍子を用いて零相電圧を検出する場合の配
線図、第３図は本考案に係る電圧検出用碍子を用
いて電路電圧を検出する場合の配線図、第４図は
本考案に係る電圧検出用碍子を用いて零相電圧を
検出する場合の配線図である。
９……碍子、１０……電圧検出用蓄電器、１１
……高圧側端子、１２……低圧側端子、１３……
保護接地用端子、１４……電圧制限素子。
Figure 1 is a wiring diagram for detecting circuit voltage using a conventional voltage detection insulator, Figure 2 is a wiring diagram for detecting zero-sequence voltage using a conventional voltage detection insulator, and Figure 3 4 is a wiring diagram for detecting a circuit voltage using the voltage detecting insulator according to the present invention, and FIG. 4 is a wiring diagram for detecting zero-sequence voltage using the voltage detecting insulator according to the present invention. 9...Insulator, 10...Voltage detection capacitor, 11
...High voltage side terminal, 12...Low voltage side terminal, 13...
Protective earthing terminal, 14... Voltage limiting element.
Claims (1)
器とそれぞれ接続した高圧側端子と低圧側端子と
を設けて成る電圧検出用碍子において、保護接地
用端子を設け、この保護接地用端子と、上記低圧
側端子との間に電圧制限素子を接続して成る電圧
検出用碍子。 In an insulator for voltage detection, which includes a built-in capacitor for voltage detection, and a high voltage side terminal and a low voltage side terminal connected to the capacitor, a protective grounding terminal is provided, and this protective grounding terminal and the low voltage A voltage detection insulator with a voltage limiting element connected between the side terminals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7456383U JPS59180679U (en) | 1983-05-20 | 1983-05-20 | Insulator for voltage detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7456383U JPS59180679U (en) | 1983-05-20 | 1983-05-20 | Insulator for voltage detection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59180679U JPS59180679U (en) | 1984-12-03 |
| JPH0245822Y2 true JPH0245822Y2 (en) | 1990-12-04 |
Family
ID=30204652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7456383U Granted JPS59180679U (en) | 1983-05-20 | 1983-05-20 | Insulator for voltage detection |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59180679U (en) |
-
1983
- 1983-05-20 JP JP7456383U patent/JPS59180679U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59180679U (en) | 1984-12-03 |
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